fix: ghe integration - add additional details in log and capture message

[mdtro]

For hosts that bypass the signature check:

• add additional details to the log output
• capture a message and send it to Sentry

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.12%. Comparing base (f65b4f3) to head (a12d174).
Report is 1021 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #74884   +/-   ##
=======================================
  Coverage   78.12%   78.12%           
=======================================
  Files        6743     6743           
  Lines      300966   300982   +16     
  Branches    51766    51769    +3     
=======================================
+ Hits       235125   235154   +29     
+ Misses      59499    59491    -8     
+ Partials     6342     6337    -5     

Files	Coverage Δ
...c/sentry/integrations/github_enterprise/webhook.py	87.50% <100.00%> (+0.19%)	⬆️

... and 12 files with indirect coverage changes

[getsantry]

This pull request has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you add the label WIP, I will leave it alone unless WIP is removed ... forever!

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"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀